Hex Converter - Convert Hex to Decimal, Text & ASCII Online Free

How to Use the Hex Converter

1. Enter a value — type a value in the Hex, Decimal, or Text field
2. Watch the other fields update automatically — all conversions happen in real-time as you type
3. Copy any result — click the copy button next to any field
4. Switch between modes — use the tabs to toggle between hex/decimal/text and hex/ASCII views

Perfect for programmers working with memory addresses, color codes, network packets, or binary data representation.

Features

• Hex to Decimal — convert hexadecimal to decimal numbers
• Decimal to Hex — convert decimal to hexadecimal
• Hex to Text — decode hex string to readable text
• Text to Hex — encode text to hexadecimal
• Hex to ASCII — view ASCII character representation
• Real-time — all fields update as you type
• Large number support — handles values up to 2^53

Use Cases

• Color codes: Convert hex color values (#FF5733) to decimal RGB values for CSS or design tools
• Memory debugging: When reading memory dumps, convert hex addresses to decimal for easier comparison
• Network packet analysis: Network tools like Wireshark display data in hex — convert to text to read payloads
• Programming: Convert hex literals in code to decimal for calculations or documentation
• CTF challenges: Capture-the-flag competitions frequently require hex-to-text conversion

FAQ

What is hexadecimal?

Hexadecimal (hex) is a base-16 number system using digits 0-9 and letters A-F. It’s commonly used in computing to represent binary data in a more human-readable format. Each hex digit represents 4 bits.

How do I convert hex to text?

Each pair of hex characters represents one byte (character). For example, “48 65 6C 6C 6F” decodes to “Hello”. The ASCII standard maps each byte value to a specific character.

Can I convert large hex values?

Yes, the converter handles values up to JavaScript’s safe integer limit (2^53). For values larger than this, results will show approximate values.

Why do programmers use hex instead of decimal?

Hex maps cleanly to binary — one hex digit equals four bits. This makes it much easier to work with memory addresses, bitmasks, and hardware registers compared to decimal.

Tips

• When entering hex, you can include or omit the “0x” prefix — both work
• Space-separated hex bytes (like “48 65 6C”) are automatically handled
• Use the ASCII view to quickly check if hex data represents readable text or binary data